the present study examined the effect of juvenile physical plays on shyness of female primary school students. participants were 33 female students aged between 9 and 11 who were randomly divided into experimental (n=18) and control (n=15) groups. the experimental group participated in selected juvenile physical plays for 8 weeks, 2 sessions per week while the participants of the control group ...

BACKGROUND Numerous interventions have been shown to increase physical activity but have not been ranked by effectiveness or cost. PURPOSE This study provides a systematic review of physical activity interventions and calculates their cost-effectiveness ratios. METHODS A systematic literature review was conducted (5579 articles) and 91 effective interventions promoting physical activity wer...

Bluetooth is an emerging, short range, indoor wireless network technology, based on FH-CDMA/TDD, which allows a collection of devices to form small overlapping networks, called piconets, in an ad hoc fashion. It is likely that the Bluetooth specification may be adopted in the IEEE 802.15 Wireless Personal Area Network standard. In this paper, we present an analysis of the Bluetooth physical lay...

In signature authentication schemes, a candidate signature presented for authentication is compared to a previous signature measurement. Uniqueness of a signature is a result of a random physical process underlying the signature formation. In this paper, we model signatures as realizations of random processes with known statistics. Rate functions for the false alarm and miss probabilities are d...

One of the health objectives for the nation is to have 60% of adults 18-64 years regularly active in vigorous physical activity by 1990. In this paper an effort is made to determine whether American society is making satisfactory progress toward this goal. Two independent databases are analyzed: time diaries collected from a national sample of American adults in 1981; and the Simmons Market Res...

Controlling information flow in a cyber-physical system (CPS) is challenging because cyber domain decisions and actions manifest themselves as visible changes in the physical domain. This paper presents a nondeducibility-based observability analysis for CPSs. In many CPSs, the capacity of a low-level (LL) observer to deduce high-level (HL) actions ranges from limited to none. However, a collabo...

This study presents an analysis on the factors contributing to groundings when ships transit in and out of ports. The study has been part of a three-year project on “Ship Transit Risk”. By verifying the grounding location database generated during the first two years of the project against the United States Coast Guard’s grounding accident data, an updated database was established in this resea...

A cyber-physical system (CPS) is composed of interdependent physical-resource and cyber-resource networks that are tightly coupled. The malfunction of nodes in a network may trigger failures to the other network and further cause cascading failures, which would potentially lead to the complete collapse of the entire system. The number and communication of operating nodes at stable state are clo...